The secret here is N-acetyl-carnosine, which they claim is to preserve the formula, but in fact is included to help prevent macular degeneration. I try to use these every day so that as I age my vision remains 20/20. I wear sunglasses religiously, and take supplements orally such as Luetin and Bilberry, but I use this as an added measure. One caveat, is that the directions say to keep this in the refrigerator for maximum shelf life (beyond 30 days) which is a bit annoying. Plus the cold drops can be a bit shocking. Additionally, there can be a sting as the drop hits your eye because of pH imbalance. But for anyone who cares about their vision, this is a worthy investment. I have also heard of people using this in their dogs' eyes to help with cataracts. Your mileage may vary.

I have been using this product now for over a month in the hopes that it will clear up a cateract I have in one eye and prevent the growth of one in the other eye. I am already seeing improvement in the one bad eye. This treatment is recommended for at least 6 months so I am hoping to have further progress.

I have used this for my cataracts, and I do see clearer when I use them, I don't know that they have helped, but to me they work well, have been putting off the cataract surgery for 3 years and continue to use the drops, seems to help with the foggy look. I am still able to thread a needle after 3 years.